Morales-Corts, R., M. A. Gomez-Sanchez, R. Perez-Sanchez, and C. Prieto-Calvo. “Characterization of Beekeeping Wastes for Using in Seedling Production”. Spanish Journal of Agricultural Research, Vol. 8, no. 2, Sept. 2010, pp. 493-00, doi:10.5424/sjar/2010082-1216.